They are also the most technologically advanced of the extant species.

There are now believed to be around 10,000 extant species.

There are at least 60 extant species in this genus.

Of the 41 extant species, 36 are found solely in Africa.

Only two extant species are known to exist in this relatively new order.

The final total of extant species may grow to exceed 32,500.

It is the only extant species in the family Upupidae.

Many extant species are under threat because of past and ongoing human activities.

The main radiation of extant species, however, may have taken place more recently, between 20 and 40 million years ago.

The 38 extant species are all in the family Polychelidae.